﻿(2) 
  - 
  19 
  - 
  

  

  stamens 
  (50-70), 
  the 
  stoutness 
  of 
  the 
  latter, 
  the 
  short 
  connective 
  

   appendages 
  of 
  the 
  anthers, 
  and 
  the 
  short 
  styles. 
  From 
  this 
  

   N. 
  cayensis 
  is 
  easily 
  distinguished 
  by 
  the 
  total 
  absence 
  of 
  black 
  

   spots, 
  the 
  deeply 
  crenate 
  leaf 
  margin, 
  mauy 
  petals 
  (20-30) 
  and 
  

   stamens 
  (150), 
  with 
  long 
  connectives 
  and 
  styles. 
  N. 
  Zanzïbarimsis 
  

   differs 
  from 
  N. 
  capensis 
  chiefly 
  by 
  having 
  a 
  more 
  spatulate 
  petal, 
  

   more 
  numerous 
  stamens 
  (up 
  .to 
  240)^ 
  and 
  a 
  deep 
  purple 
  color 
  in 
  

   the 
  fiower 
  and 
  on 
  the 
  under 
  side 
  of 
  the 
  leaf, 
  It 
  makes 
  fertile 
  

   hybrids 
  with 
  N. 
  capensis, 
  and 
  should 
  hâve 
  only 
  varietal 
  rank 
  

   beside 
  that 
  species. 
  Both 
  form 
  nearly 
  stérile 
  progeny 
  when 
  

   crossed 
  with 
  N. 
  ceerulea 
  Sav. 
  

  

  Collections 
  from 
  parts 
  of 
  Africa 
  other 
  than 
  the 
  extrême 
  ends 
  

   offer 
  forms 
  oî 
  Nymphœa 
  which 
  cannot 
  well 
  be 
  classed 
  with 
  any 
  

   on 
  the 
  proceding. 
  Of 
  thèse 
  a 
  certain 
  central 
  African 
  type 
  was 
  met 
  

   with 
  frequently 
  in 
  a 
  récent 
  visit 
  to 
  some 
  leading 
  European 
  her- 
  

   baria. 
  Finally, 
  studying 
  the 
  beautifully 
  preserved 
  spécimens 
  in 
  

   the 
  Herbier 
  Delessert, 
  the 
  conviction 
  forced 
  itself 
  upon 
  me 
  that 
  

   we 
  had 
  to 
  do 
  with 
  a 
  well 
  defined 
  species. 
  Through 
  the 
  courtesy 
  

   of 
  Prof. 
  Briquet, 
  to 
  w^hom 
  I 
  am 
  pleasantly 
  indebted 
  in 
  many 
  

   other 
  ways, 
  I 
  am 
  able 
  to 
  give 
  the 
  following 
  preliminary 
  descrip- 
  

   tion. 
  

  

  Nymphsea 
  calliantha, 
  sp. 
  nov. 
  

  

  Flow^ers 
  10-15 
  cm. 
  in 
  diameter, 
  pink, 
  violet 
  or 
  light 
  blue 
  ; 
  

   sepals 
  lanceolate, 
  green 
  outside, 
  with 
  black 
  spots 
  near 
  the 
  margin. 
  

   Leaf 
  entire, 
  orbicular-ovate, 
  cleft 
  nearly 
  to 
  the 
  pétiole, 
  purplish 
  

   to 
  deep 
  royal 
  purple 
  beneath. 
  

  

  Syn. 
  N. 
  cserulea 
  Gilg, 
  Kimene-Samhesi-Expedition, 
  p. 
  234-5, 
  

   1903. 
  

  

  Description 
  : 
  Sepals 
  4, 
  lanceolate, 
  1 
  cm. 
  long 
  by 
  1,7 
  cm. 
  wide, 
  

   acute 
  ; 
  outer 
  surface 
  dull 
  green, 
  with 
  a 
  few 
  black 
  spots 
  near 
  the 
  

   margin 
  ; 
  covered 
  margins 
  tinted 
  red 
  ; 
  inner 
  surface 
  bright 
  rose- 
  

   pink 
  on 
  upper 
  1,5-2 
  cm., 
  shading 
  to 
  white 
  below. 
  — 
  Fêtais 
  17, 
  

   lanceolate 
  ; 
  outer 
  one 
  1,7 
  cm. 
  wide, 
  sepaloid 
  on 
  back, 
  its 
  margins 
  

   petaloid, 
  i. 
  e. 
  w^hitish 
  below, 
  shading 
  to 
  pink 
  in 
  upper 
  tw^o 
  thirds, 
  

   and 
  decided 
  rose-pink 
  in 
  uppermost 
  1 
  cm. 
  ; 
  inner 
  surface 
  white 
  

   in 
  lower 
  three 
  fourths, 
  becoming 
  rose-pink 
  at 
  apex, 
  and 
  on 
  mar- 
  

  

  